ADD is common for people on the spectrum. Its a possibility you might have it. I have it, and take meds for it. I also take meds for other issues also. Depression though can cause boredom also, with being unable to maintain an interest in something you use to enjoy. Irritability is also a common for people on the spectrum.
I recommend getting diagnosed by a DR. A DR will be able to either prescribe you something for depression or ADD, and irritability if you have it.

Good luck